# IA8237 Advanced Information Sheet - Programmable DMA Controller

## Features

· Compatible with Intel 8237A and Harris 82C37A
· Available in 40-Pin Plastic DIP or 44-Pin Plastic Leaded Chip Carrier packages
· Supports static Read/Write or Handshaking modes
· Provides direct Bit Set/Reset capability
· Enables memory-to-memory transfers

## Functionality

· Programmable Direct Memory Access (DMA) mega-function
· Controls data transfers between memory and peripherals
· Supports memory-to-memory transfers and block memory initialization
· Four independently programmable channels

## Package Pinout

· Includes A0-A7, DB0-DB7, CLK, RESET, DREQ0-DREQ3, DACK0-DACK3, HRQ, CS_n, EOP_n, READY, IOR_n, IOW_n, MEMR_n, MEMW_n, ADSTB, HLDA, AEN, N.C.

## Qualification Levels (Table 1)

Part Number	Environmental/ Qual Level
IA8237-PDW40C	Commercial
IA8237-PLC44C	Commercial
IA8237-PDW40I	Industrial
IA8237-PLC44I	Industrial

## Product Identification Number

IAXXXXX-PPPPNNNT/SP
· Special Processing: S = Space, Q = MIL-STD-883
· Temperature: C = Commercial, I = Industrial, M = Military

## Package Designator Table

· Includes designators for various package types (e.g., CDB, CDW, CLC, PLC, PD, PDW, PQF, PTQ, PSO, PSM, PSN, PSW, PDS, PS, PTS, PSL, PST, CPGA, CBGA)
· Contact innovASIC for additional package and processing options